摘要
结合山西某典型巷道具体地质生产条件,采用理论分析确定综放沿空巷道合理煤柱宽度为8 m。采用UDEC数值模拟软件分析8 m煤柱条件下围岩稳定性,并针对性地提出了以高强锚杆和锚索为主体的综合控制技术,并进行现场应用。工程实践表明,该支护技术能够保证沿空巷道围岩稳定。
Based on specific geological conditions of Shanxi typical roadway, the reasonable width of coal pillar in fully-mechanized caving roadway was settled as 8 meters through theoretical analysis. Integrated control technology with subject of high strength anchor and anchor cable was proposed and applied, and stability of surrounding rock in the condition of 8 meters pillar was analyzed through UDEC numeral simulation software. The practice showed the support technology can guarantee stability of surrounding rock in gob-side entry.
出处
《煤炭与化工》
CAS
2016年第9期76-78,共3页
Coal and Chemical Industry
关键词
沿空掘巷
煤柱宽度
UDEC数值模拟
弹塑性理论
gob-side entry driving
width of coal pillar
UDEC numeral simulation
elastic plastic theory
